tetrapyrazolylhydroquinone | 138152-24-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: tetrapyrazolylhydroquinone
• 英文别名: 2,3,5,6-Tetra(pyrazol-1-yl)benzene-1,4-diol
• CAS: 138152-24-6
• 化学式: C₁₈H₁₄N₈O₂
• 分子量: 374.362
• InChiKey: ZPWNFBZHTOEYQZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  28
• 可旋转键数：
  4
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  112
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  tetrapyrazolylhydroquinone 在 硫酸 、 三氧化硫 作用下， 生成
  参考文献：
  名称：

  [EN] HIGH-AND LOW-POTENTIAL, WATER-SOLUBLE, ROBUST QUINONES
  [FR] QUINONES ROBUSTES SOLUBLES DANS L'EAU À POTENTIEL FAIBLE ET ÉLEVÉ

  摘要：

  本文披露了取代的对苯二酚、1,4-喹啉醌、邻苯二酚、1,2-喹啉醌、蒽醌和蒽氢醌。取代的对苯二酚和邻苯二酚的化学式为：而取代的1,4-喹啉醌或1,2-喹啉醌具有相应的氧化结构（1,4-苯醌和1,2-苯醌）。R1、R2、R3和R4中的一个或多个包括磺酸酯基、磺酰胺基或膦酸酯基，而不包括这些基团之一的R1、R2、R3和R4包括烷基、环烷基、硫醚、亚硫醚、砜、卤代烷基、卤素、腈、酰亚胺、吡唑或其组合。取代的蒽醌的化学式为：而取代的蒽氢醌具有相应的还原结构。R1-R8中的一个或多个通过硫醚、胺或醚与环相连，包括一个或多个烷基。不含这些基团之一的R1-R8包括烷基、环烷基、硫醚、亚硫醚、砜、卤代烷基、卤素、羟基、烷氧基、醚、胺或氢的任何基团。取代的对苯二酚、1,4-喹啉醌、邻苯二酚、1,2-喹啉醌、蒽醌或蒽氢醌在水中溶解，在水酸性溶液中稳定，并且在氧化形式中具有有用的还原电位。因此，它们可以用作新兴技术中的氧化还原中介体，例如在介导燃料电池或有机介质流动电池中。

  公开号：

  WO2018160618A1
• 作为产物：
  描述：

  1,4-dihydroxy-2,3-bis(pyrazol-1'-yl)benzene 在 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 1,4-二氧六环 为溶剂， 反应 25.0h， 生成 tetrapyrazolylhydroquinone
  参考文献：
  名称：

  Reaction of pyrazole addition to quinones

  摘要：

  The reactions of pyrazole, 4-nitropyrazole, 3,5-dimethylpyrazole, and 4-chloro-3,5-dimethylpyrazole with 1,4-benzoquinone in dioxane have been analyzed. Mono- and 2,3-bis-adducts were obtained and only in the case of pyrazole was a 2,5-bis(pyrazol-1-yl)-1,4-dihydroxybenzene formed. Further oxidation of the mono- and bis-adducts with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) afforded the quinones, which in turn added 1 mol of azole (pyrazole and imidazole) to yield tetrapyrazolylquinols. Nitration of the 2,3-bis(pyrazol-1-yl)- and 2,3-bis(3,5-dimethylpyrazol-1-yl)-1,4-dihydroxybenzenes has been performed to prepare the corresponding 4-nitropyrazolyl derivatives.

  DOI：

  10.1021/jo00032a048

文献信息

• High solubility thioether quinones
  申请人：Wisconsin Alumni Research Foundation

  公开号：US11021441B2

  公开（公告）日：2021-06-01

  Substituted hydroquinones and quinones and methods of synthesizing such compounds are disclosed herein. The substituted hydroquinones have the formula: while the substituted quinones have the corresponding oxidized structure (1,4-benzoquinones). One, two, three, or all four of R1, R2, R3 and R4 comprise a thioether moiety and a sulfonate moiety, and wherein each R1, R2, R3 and R4 that does not comprise a thioether and a sulfonate moiety sulfonate moiety is independently a hydrogen, an alkyl or an electron withdrawing group. The substituted hydroquinones and quinones are soluble in water, stable in aqueous acid solutions, and have a high reduction potential in the oxidized form. Accordingly, they can be used as redox mediators in emerging technologies, such as in mediated fuel cells or organic-mediator flow batteries.

  本文公开了取代的氢醌和醌类化合物以及合成此类化合物的方法。取代的对苯二酚具有以下式子 而取代的醌类具有相应的氧化结构（1,4-苯醌）。R1、R2、R3 和 R4 中的一、二、三或全部四个包含硫醚分子和磺酸分子，其中每个不包含硫醚分子和磺酸分子的 R1、R2、R3 和 R4 独立地是氢、烷基或取电子基团。 取代的对苯二酚和醌类可溶于水，在酸性水溶液中稳定，在氧化形式下具有较高的还原电位。因此，它们可用作新兴技术中的氧化还原介质，如介导燃料电池或有机介质液流电池。
• High-Solubility Thioether Quinones
  申请人：Wisconsin Alumni Research Foundation

  公开号：US20190055193A1

  公开（公告）日：2019-02-21

  Substituted hydroquinones and quinones and methods of synthesizing such compounds are disclosed herein. The substituted hydrroquinones have the formula: while the substituted quinones have the corresponding oxidized structure (1,4-benzoquinones). One, two, three, or all four of R 1 , R 2 , R 3 and R 4 comprise a thioether moiety and a sulfonate moiety, and wherein each R 1 , R 2 , R 3 and R 4 that does not comprise a thioether and a sulfonate moiety sulfonate moiety is independently a hydrogen, an alkyl or an electron withdrawing group. The substituted hydroquinones and quinones are soluble in water, stable in aqueous acid solutions, and have a high reduction potential in the oxidized form. Accordingly, they can be used as redox mediators in emerging technologies, such as in mediated fuel cells or organic-mediator flow batteries.
• High Solubility Thioether Quinones
  申请人：Wisconsin Alumni Research Foundation

  公开号：US20200223794A1

  公开（公告）日：2020-07-16

  Substituted hydroquinones and quinones and methods of synthesizing such compounds are disclosed herein. The substituted hydroquinones have the formula: while the substituted quinones have the corresponding oxidized structure (1,4-benzoquinones). One, two, three, or all four of R 1 , R 2 , R 3 and R 4 comprise a thioether moiety and a sulfonate moiety, and wherein each R 1 , R 2 , R 3 and R 4 that does not comprise a thioether and a sulfonate moiety sulfonate moiety is independently a hydrogen, an alkyl or an electron withdrawing group. The substituted hydroquinones and quinones are soluble in water, stable in aqueous acid solutions, and have a high reduction potential in the oxidized form. Accordingly, they can be used as redox mediators in emerging technologies, such as in mediated fuel cells or organic-mediator flow batteries.